package demo4.mapper;

import demo4.pojo.User;
/**
 * 将来公司中对于接口和其实现类的命名常见的有两种
 * 1:
 * 接口名:UserMapper
 * 实现类:UserMapperImpl
 *
 * 2:
 * 接口名:IUserMapper
 * 实现类:UserMapper
 *
 */
public interface IUserMapper {
    int insert(User user);
}
